SU64845A1 - Hollowness Tightness Tester - Google Patents

Hollowness Tightness Tester

Info

Publication number
SU64845A1
SU64845A1 SU917A SU917A SU64845A1 SU 64845 A1 SU64845 A1 SU 64845A1 SU 917 A SU917 A SU 917A SU 917 A SU917 A SU 917A SU 64845 A1 SU64845 A1 SU 64845A1
Authority
SU
USSR - Soviet Union
Prior art keywords
hollowness
chamber
tightness tester
product
mercury
Prior art date
Application number
SU917A
Other languages
Russian (ru)
Other versions
SU55180A1 (en
Inventor
В.Г. Рогов
Original Assignee
В.Г. Рогов
Filing date
Publication date
Publication of SU55180A1 publication Critical patent/SU55180A1/en
Application filed by В.Г. Рогов filed Critical В.Г. Рогов
Priority to SU917A priority Critical patent/SU64845A1/en
Application granted granted Critical
Publication of SU64845A1 publication Critical patent/SU64845A1/en

Links

Description

Известны устройства дл  испытани  на герметичность полых изделий , помещаемых дл  этого в камеру , присоедин емую че:рез кран к сосуду, ifi котором создаетс  вакуум , измер емый .ртутным манометром .Air-tightness testing devices are known for hollow articles placed for this purpose in a chamber connected via a valve to a vessel, ifi which creates a vacuum measured by a mercury pressure gauge.

Однако эти известные устройства без применени  добавочныХ цриспособлений не могут -обеопечить необходимую точность измерени , так как, вследствие большого объема камеры, небольшие изменени  давлени  в ней, обусловленные негерметичностью помещ,енного в ней полого издели , не отражаютс  заметным образом на величине вакуума в присоединенном к этой камере- сосуде и, следовательно, на уровне ртути в манаметре.However, these known devices cannot apply the necessary measurement accuracy without the use of additional devices, since, due to the large volume of the chamber, small changes in the pressure in it, due to leakage of the hollow product placed in it, are not reflected in a noticeable way by the amount of vacuum attached to it. This chamber is a vessel and, therefore, at the level of mercury in the manometer.

С целью повышени  точности, измерени , в предлагаемом устройстве дл  испытани  на рерм епичность полых изделий нвутренв   полость KaiMepbi, в которую помещаетс  испытуемое изделие, выполн 1е1тс  по конфигурации указанного издели  с небольшим зазором между нимииIn order to improve the accuracy of measurement, in the proposed device for testing the stability of hollow products inside the KaiMepbi cavity, into which the test product is placed, performed 1½ times the configuration of the specified product with a small gap between them.

На чертеже схематически изображено предлагаемое устройство дл  испытани  на герметичность полых изделий.The figure shows schematically the proposed device for testing the tightness of hollow articles.

Испытуемое изделие устанавливают в камеру 1, на которую надевают крышку 2. Камера 1 и крышка 2 должны быть изготовлены так, чтобы зазоры между внутре нним их контуром и наружным контуром издели  были возможно минимальными .The test article is installed in the chamber 1, on which the lid 2 is put on. The chamber 1 and the lid 2 must be made so that the gaps between their inner contour and the outer contour of the product are possibly minimal.

При закрытом кране 3 в цилиндре 4 насоса создают ва1куум, фиксируемый ртутным столбом на риске А ртутного манометра 5.When the valve 3 in the cylinder 4 of the pump is closed, they create a vacuum fixed by the mercury column on the risk A of the mercury manometer 5.

Открытием крана 3 цилиндр 4 .насоса сообщают с камерой 1, вследствие чего в ней также создаетс  вакуум. Крышка 2 в это врем  плотно прижимаетс  через резиновое кольцо к камере 1, и изделие, помещенн а в ней, оказываетс  изолированным от атмосферного давлени .By opening the valve 3, the cylinder 4. The pump communicates with the chamber 1, as a result of which a vacuum is also created in it. The cover 2 at this time tightly presses through the rubber ring to the chamber 1, and the product placed in it is isolated from the atmospheric pressure.

Если, изделие герметично, уровень ртути, наход щийс  против риски А, будет стремитьс  достигнуть риски Б, но никогда ее не достигнет , так как при нанесении риски Б заранее учитываетс  объем |воздуха, наход щийс  между контуром испытуемого издели  и внутренними контурами камеры 1 и крышми .2, а следовательно, уч)Ить1ваетс  -И подъем ртутного столба.If the product is hermetic, the level of mercury, which is against risks A, will tend to reach risks B, but never will reach it, because when applying risks B, the amount of air between the contour of the test product and the inner contours of chamber 1 and roof .2, and therefore, uch) It turns out -And the rise of the mercury column.

SU917A 1942-07-02 Hollowness Tightness Tester SU64845A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU917A SU64845A1 (en) 1942-07-02 Hollowness Tightness Tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU917A SU64845A1 (en) 1942-07-02 Hollowness Tightness Tester

Publications (2)

Publication Number Publication Date
SU55180A1 SU55180A1 (en) 1938-11-30
SU64845A1 true SU64845A1 (en) 1945-06-30

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